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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/* CryptoAES128.h : Adds support for XMega HW accelerated 128-bit AES encryption</span></div><div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment"> *                  in ECB and CBC modes.</span></div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> *                  Based in part on the the source code for Microchip&#39;s ASF library</span></div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> *                  available at https://github.com/avrxml/asf (see license below).</span></div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"> * Author: Maxie D. Schmidt (@maxieds)</span></div><div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;</div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment">/*****************************************************************************</span></div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment"> * Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.</span></div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment"> * Subject to your compliance with these terms, you may use Microchip</span></div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment"> * software and any derivatives exclusively with Microchip products.</span></div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment"> * It is your responsibility to comply with third party license terms applicable</span></div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment"> * to your use of third party software (including open source software) that</span></div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment"> * may accompany Microchip software.</span></div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="comment"> * THIS SOFTWARE IS SUPPLIED BY MICROCHIP &quot;AS IS&quot;. NO WARRANTIES,</span></div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="comment"> * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,</span></div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="comment"> * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,</span></div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="comment"> * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE</span></div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="comment"> * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL</span></div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="comment"> * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE</span></div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="comment"> * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE</span></div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="comment"> * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT</span></div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="comment"> * ALLOWED BY LAW, MICROCHIP&#39;S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY</span></div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="comment"> * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,</span></div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="comment"> * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.</span></div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="comment"> *****************************************************************************/</span></div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;</div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="preprocessor">#ifndef __CRYPTO_AES128_HW_H__</span></div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;<span class="preprocessor">#define __CRYPTO_AES128_HW_H__</span></div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;</div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;<span class="preprocessor">#include &lt;avr/io.h&gt;</span></div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;</div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;<span class="comment">/* AES Processing mode */</span></div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;<span class="preprocessor">#define CRYPTO_AES_PMODE_DECIPHER          0     // decipher</span></div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;<span class="preprocessor">#define CRYPTO_AES_PMODE_ENCIPHER          1     // cipher</span></div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;</div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;<span class="comment">/* AES Start mode */</span></div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;<span class="preprocessor">#define CRYPTO_AES_START_MODE_MANUAL       0     // Manual mode</span></div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;<span class="preprocessor">#define CRYPTO_AES_START_MODE_AUTO         1     // Auto mode</span></div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;<span class="preprocessor">#define CRYPTO_AES_START_MODE_DMA          2     // DMA mode</span></div><div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;</div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;<span class="comment">/* AES Cryptographic key size */</span></div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;<span class="preprocessor">#define CRYPTO_AES_KEY_SIZE_128            0     // 128-bit</span></div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;<span class="preprocessor">#define CRYPTO_AES_KEY_SIZE_192            1     // 192-bit</span></div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;<span class="preprocessor">#define CRYPTO_AES_KEY_SIZE_256            2     // 256-bit</span></div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;</div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;<span class="comment">/* AES Operation cipher mode */</span></div><div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;<span class="preprocessor">#define CRYPTO_AES_ECB_MODE                0     // Electronic Code Book mode</span></div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;<span class="preprocessor">#define CRYPTO_AES_CBC_MODE                1     // Cipher Block Chaining mode</span></div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;<span class="preprocessor">#define CRYPTO_AES_OFB_MODE                2     // Output FeedBack mode</span></div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;<span class="preprocessor">#define CRYPTO_AES_CFB_MODE                3     // Cipher FeedBack mode</span></div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;<span class="preprocessor">#define CRYPTO_AES_CTR_MODE                4     // Counter mode</span></div><div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;</div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;<span class="comment">/* AES URAD Type */</span></div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;<span class="preprocessor">#define CRYPTO_AES_URAT_INPUTWRITE_DMA     0     // Input Data Register written during the data processing in DMA mode</span></div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;<span class="preprocessor">#define CRYPTO_AES_URAT_OUTPUTREAD_PROCESS 1     // Output Data Register read during the data processing</span></div><div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;<span class="preprocessor">#define CRYPTO_AES_URAT_MRWRITE_PROCESS    2     // Mode Register written during the data processing</span></div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;<span class="preprocessor">#define CRYPTO_AES_URAT_OUTPUTREAD_SUBKEY  3     // Output Data Register read during the sub-keys generation</span></div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;<span class="preprocessor">#define CRYPTO_AES_URAT_MRWRITE_SUBKEY     4     // Mode Register written during the sub-keys generation</span></div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;<span class="preprocessor">#define CRYPTO_AES_URAT_READ_WRITEONLY     5     // Write-only register read access</span></div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;</div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;<span class="comment">/* Define types for the AES-128 specific implementation: */</span></div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;<span class="preprocessor">#define CRYPTO_AES_KEY_SIZE                16</span></div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;<span class="keyword">typedef</span> uint8_t CryptoAESKey_t[CRYPTO_AES_KEY_SIZE];</div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;</div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;<span class="preprocessor">#define CRYPTO_AES_BLOCK_SIZE                16</span></div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;<span class="keyword">typedef</span> uint8_t CryptoAESBlock_t[CRYPTO_AES_BLOCK_SIZE];</div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;</div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;<span class="preprocessor">#define CryptoAESBytesToBlocks(byteCount) \</span></div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;<span class="preprocessor">     ((byteCount + CRYPTO_AES_BLOCK_SIZE - 1) / CRYPTO_AES_BLOCK_SIZE)</span></div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;</div><div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;<span class="keyword">typedef</span> <span class="keyword">enum</span> aes_dec {</div><div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;    AES_ENCRYPT,</div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;    AES_DECRYPT = AES_DECRYPT_bm,</div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;} CryptoAESDec_t;</div><div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;</div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;<span class="comment">/* AES Auto Start Trigger settings */</span></div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;<span class="keyword">typedef</span> <span class="keyword">enum</span> aes_auto {</div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;    AES_MANUAL,                      <span class="comment">// manual start mode.</span></div><div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;    AES_AUTO = AES_AUTO_bm,          <span class="comment">// auto start mode.</span></div><div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;} CryptoAESAuto_t;</div><div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;</div><div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;<span class="comment">/* AES State XOR Load Enable settings */</span></div><div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;<span class="keyword">typedef</span> <span class="keyword">enum</span> aes_xor {</div><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;    AES_XOR_OFF,                    <span class="comment">// state direct load.</span></div><div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;    AES_XOR_ON = AES_XOR_bm,        <span class="comment">// state XOR load.</span></div><div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;} CryptoAESXor_t;</div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;</div><div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;<span class="comment">/* AES Interrupt Enable / Level settings */</span></div><div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;<span class="keyword">typedef</span> <span class="keyword">enum</span> aes_intlvl {</div><div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;    AES_INTLVL_OFF = AES_INTLVL_OFF_gc,  <span class="comment">// Interrupt Disabled</span></div><div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;    AES_INTLVL_LO  = AES_INTLVL_LO_gc,   <span class="comment">// Low Level</span></div><div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;    AES_INTLVL_MED = AES_INTLVL_MED_gc,  <span class="comment">// Medium Level</span></div><div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;    AES_INTLVL_HI  = AES_INTLVL_HI_gc,   <span class="comment">// High Level</span></div><div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;} CryptoAESIntlvl_t;</div><div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;</div><div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;<span class="comment">/* AES interrupt callback function pointer. */</span></div><div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;<span class="keyword">typedef</span> void (*aes_callback_t)(void);</div><div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;</div><div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;<span class="keyword">typedef</span> <span class="keyword">struct </span>{</div><div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;    CryptoAESDec_t   ProcessingMode;</div><div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;    uint8_t          ProcessingDelay;            <span class="comment">// [0,15]</span></div><div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;    CryptoAESAuto_t  StartMode;</div><div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>    OpMode;                     <span class="comment">// 0 = ECB, 1 = CBC, 2 = OFB, 3 = CFB, 4 = CTR</span></div><div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;    CryptoAESXor_t   XorMode;</div><div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;} CryptoAESConfig_t;</div><div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;</div><div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;<span class="keyword">typedef</span> <span class="keyword">struct </span>{</div><div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>   datrdy;                      <span class="comment">// ENABLE/DISABLE; Data ready interrupt</span></div><div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>   urad;                        <span class="comment">// ENABLE/DISABLE; Unspecified Register Access Detection</span></div><div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;} CryptoAES_ISRConfig_t;</div><div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;</div><div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;<span class="comment">/* AES encryption complete. */</span></div><div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;<span class="preprocessor">#define AES_ENCRYPTION_COMPLETE  (1UL &lt;&lt; 0)</span></div><div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;</div><div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;<span class="comment">/* AES GF multiplication complete. */</span></div><div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;<span class="preprocessor">#define AES_GF_MULTI_COMPLETE    (1UL &lt;&lt; 1)</span></div><div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;</div><div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;<span class="keywordtype">void</span> aes_start(<span class="keywordtype">void</span>);</div><div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;<span class="keywordtype">void</span> aes_software_reset(<span class="keywordtype">void</span>);</div><div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;<span class="keywordtype">bool</span> aes_is_busy(<span class="keywordtype">void</span>);</div><div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;<span class="keywordtype">bool</span> aes_is_error(<span class="keywordtype">void</span>);</div><div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;<span class="keywordtype">void</span> aes_clear_interrupt_flag(<span class="keywordtype">void</span>);</div><div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;<span class="keywordtype">void</span> aes_clear_error_flag(<span class="keywordtype">void</span>);</div><div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;<span class="keywordtype">void</span> aes_configure(CryptoAESDec_t op_mode, CryptoAESAuto_t auto_start, CryptoAESXor_t xor_mode);</div><div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;<span class="keywordtype">void</span> aes_configure_encrypt(CryptoAESAuto_t auto_start, CryptoAESXor_t xor_mode);</div><div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;<span class="keywordtype">void</span> aes_configure_decrypt(CryptoAESAuto_t auto_start, CryptoAESXor_t xor_mode);</div><div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;<span class="keywordtype">void</span> aes_set_key(uint8_t *key_in);</div><div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;<span class="keywordtype">void</span> aes_get_key(uint8_t *key_out);</div><div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;<span class="keywordtype">void</span> aes_write_inputdata(uint8_t *data_in);</div><div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;<span class="keywordtype">void</span> aes_read_outputdata(uint8_t *data_out);</div><div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;<span class="keywordtype">void</span> aes_isr_configure(CryptoAESIntlvl_t intlvl);</div><div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;<span class="keywordtype">void</span> aes_set_callback(<span class="keyword">const</span> aes_callback_t callback);</div><div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;</div><div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;<span class="keywordtype">void</span> CryptoAESGetConfigDefaults(CryptoAESConfig_t *ctx);</div><div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;<span class="keywordtype">void</span> CryptoAESInitContext(CryptoAESConfig_t *ctx);</div><div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;uint16_t CryptoAESGetPaddedBufferSize(uint16_t bufSize);</div><div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;</div><div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;<span class="keywordtype">void</span> CryptoAESEncryptBlock(uint8_t *Plaintext, uint8_t *Ciphertext, <span class="keyword">const</span> uint8_t *Key, <span class="keywordtype">bool</span>);</div><div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;<span class="keywordtype">void</span> CryptoAESDecryptBlock(uint8_t *Plaintext, uint8_t *Ciphertext, <span class="keyword">const</span> uint8_t *Key);</div><div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;uint8_t CryptoAESEncryptBuffer(uint16_t Count, uint8_t *Plaintext, uint8_t *Ciphertext,</div><div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;                               <span class="keyword">const</span> uint8_t *IV, <span class="keyword">const</span> uint8_t *Key);</div><div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;uint8_t CryptoAESDecryptBuffer(uint16_t Count, uint8_t *Plaintext, uint8_t *Ciphertext,</div><div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;                               <span class="keyword">const</span> uint8_t *IV, <span class="keyword">const</span> uint8_t *Key);</div><div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;</div><div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;<span class="keyword">typedef</span> uint8_t (*CryptoAESFuncType)(uint8_t *, uint8_t *, uint8_t *);</div><div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;<span class="keyword">typedef</span> <span class="keyword">struct </span>{</div><div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;    CryptoAESFuncType  cryptFunc;</div><div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;    uint16_t           blockSize;</div><div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;} CryptoAES_CBCSpec_t;</div><div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;</div><div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;<span class="keywordtype">void</span> CryptoAES_CBCSend(uint16_t Count, <span class="keywordtype">void</span> *Plaintext, <span class="keywordtype">void</span> *Ciphertext,</div><div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;                       uint8_t *IV, uint8_t *Key,</div><div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;                       CryptoAES_CBCSpec_t CryptoSpec);</div><div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;<span class="keywordtype">void</span> CryptoAES_CBCRecv(uint16_t Count, <span class="keywordtype">void</span> *Plaintext, <span class="keywordtype">void</span> *Ciphertext,</div><div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;                       uint8_t *IV, uint8_t *Key,</div><div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;                       CryptoAES_CBCSpec_t CryptoSpec);</div><div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;</div><div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;<span class="keywordtype">void</span> CryptoAESEncrypt_CBCSend(uint16_t Count, uint8_t *PlainText, uint8_t *CipherText,</div><div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;                              uint8_t *Key, uint8_t *IV);</div><div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;<span class="keywordtype">void</span> CryptoAESDecrypt_CBCSend(uint16_t Count, uint8_t *PlainText, uint8_t *CipherText,</div><div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;                              uint8_t *Key, uint8_t *IV);</div><div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;<span class="keywordtype">void</span> CryptoAESEncrypt_CBCReceive(uint16_t Count, uint8_t *PlainText, uint8_t *CipherText,</div><div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;                                 uint8_t *Key, uint8_t *IV);</div><div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;<span class="keywordtype">void</span> CryptoAESDecrypt_CBCReceive(uint16_t Count, uint8_t *PlainText, uint8_t *CipherText,</div><div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;                                 uint8_t *Key, uint8_t *IV);</div><div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;</div><div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;<span class="comment">/* Crypto utility functions: */</span></div><div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;<span class="preprocessor">#define CRYPTO_BYTES_TO_BLOCKS(numBytes, blockSize) \</span></div><div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;<span class="preprocessor">     ( ((numBytes) + (blockSize) - 1) / (blockSize) )</span></div><div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;</div><div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;<span class="preprocessor">#define CryptoMemoryXOR(inputBuf, destBuf, bufSize) ({ \</span></div><div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;<span class="preprocessor">     uint8_t *in = (uint8_t *) inputBuf;               \</span></div><div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;<span class="preprocessor">     uint8_t *out = (uint8_t *) destBuf;               \</span></div><div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;<span class="preprocessor">     uint16_t count = (uint16_t) bufSize;              \</span></div><div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;<span class="preprocessor">     while(count-- &gt; 0) {                              \</span></div><div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;<span class="preprocessor">          *(out++) ^= *(in++);                         \</span></div><div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;<span class="preprocessor">     }                                                 \</span></div><div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;<span class="preprocessor">     })</span></div><div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;</div><div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;<span class="preprocessor">#endif</span></div></div><!-- fragment --></div><!-- contents -->
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